To make a parallel plate capacitor, you have available two flat plates of aluminum (area = 120 cm²), a sheet of paper (thickness = 0.10 mm, k= 3.5), a sheet of glass (thickness = 2.0 mm, . k= 7.0), and a slab of paraffin (thickness = 10.0 mm, k= 2.0). (a) What is the largest capacitance possible using one of these dielectrics? (b) What is the smallest?